These days, a lot of people wear T shirts, Suits, tie, dress shoes, jeans etc etall around the world. Pardon my ignorance, but I believe that most of these things were developed in the West.

The most common is the suit and tie. This is worn by almost every world leader in public no matter where they're from. For example, the President of South Africa doesn't wear traditional Clothing from that area. However somebody like Modhi dresses up somewhat traditionally.

I've watch a lot of travel videos and have travelled to a few places around the world. Lots of people dress up like people here in North America.